ckochandClaude Opus 5.5
95ad4d25de
- python3 -m sandtable web: local web page to play designs from a library of 27 built-in patterns, upload .thr or .svg, pause/skip/stop, jog and calibrate. Reconnects by itself when the USB cable comes back. - Plays .thr files and built-in generators with an erase spiral between them, constant ball speed, host-side homing on stock GRBL 1.1 (Uno + CNC shield), FluidNC for the ESP32 board. - Home switch guard: patterns never press the switch, so a press means lost steps and stops the machine at once with an alert. - lineart.py turns SVG line drawings into one continuous path. - Tests against a GRBL simulator. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
28 lines
948 B
TOML
28 lines
948 B
TOML
# Sand table settings. Anything left out uses the default in sandtable/config.py.
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[serial]
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port = "auto" # or e.g. "/dev/ttyACM0" (Uno) / "/dev/ttyUSB0" (CH340 clones)
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baud = 115200
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[controller]
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type = "grbl" # "grbl" = Arduino Uno + CNC shield; "fluidnc" = the custom ESP32 board
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[machine]
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rho_max_mm = 133.0 # how far out the ball goes (the tray reaches 133 mm)
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invert_theta = false # set to true if test_f draws a mirrored F
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theta_offset_deg = 0.0 # turn every pattern by this much
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# CNC shield DRV8825s at 1/32 (M0, M1 and M2 jumpers all fitted, 2026-10-31).
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# Only M2 fitted (1/16) measured as 35.556 / 80.
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theta_steps_per_deg = 71.111
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rho_steps_per_mm = 160.0
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[motion]
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ball_speed_mm_s = 25.0 # drawing speed; slower = crisper lines and quieter
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max_theta_deg_s = 60.0 # arm spin limit (10 rpm)
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[erase]
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enabled = true
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pitch_mm = 7.0 # spiral spacing between patterns (the ball is 9.5 mm)
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speed_mm_s = 35.0
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